Polymer scale preventive agent, polymerization vessel for preven

Details Polymer scale preventive agent, polymerization vessel for preven Polymer scale preventive agent, polymerization vessel for preven

1994-02-01

1995-03-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

524 83, 524528, 526205, 428 357, C08K 547

Patent

active

054018153

ABSTRACT:
A process and coated vessel for use in the prevention of scale adhesion during the polymerization of a monomer having an ethylenic double bond, the two part coating comprising an N-substituted leucophenothiazine dye having the general formula (I): wherein Z is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2 and R.sup.3 are a hydrogen atom, alkyl group, an amino group, etc., used in conjunction with a vinyl pyrrolidone polymer. The two part coating is used on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.

REFERENCES:
patent: 3669946 (1972-06-01), Koyanagi et al.
patent: 3902903 (1975-09-01), Itano et al.
patent: 4068059 (1978-01-01), Witenhafer
patent: 4180634 (1979-12-01), Koyanagi et al.
patent: 4256854 (1981-03-01), Fischer et al.
patent: 4464516 (1984-08-01), Eberl et al.
patent: 4758639 (1988-07-01), Koyanagi et al.
patent: 4829187 (1989-05-01), Tomita et al.
patent: 5068130 (1991-11-01), Decolibus
patent: 5243000 (1993-09-01), Hong et al.

Affiliated with

Also associated with

Rating

Polymer scale preventive agent, polymerization vessel for preven does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymer scale preventive agent, polymerization vessel for preven, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer scale preventive agent, polymerization vessel for preven will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2251207